Unknown · Umbraco Cms · CVE-2021-47776
**Name of the Vulnerable Software and Affected Versions**
Umbraco CMS version 8.14.1
**Description**
The software contains a server-side request forgery issue that allows attackers to manipulate `baseUrl` parameters. This manipulation can occur in several controller endpoints, including the GetContextHelpForPage, GetRemoteDashboardContent, and GetRemoteDashboardCss endpoints. Successful exploitation enables attackers to initiate unauthorized server-side requests to external hosts. The affected API endpoints are: '/umbraco/api/dashboard/help/page', '/umbraco/api/dashboard/content', and '/umbraco/api/dashboard/css'.
**Recommendations**
Update to a newer version that contains a fix for this vulnerability. As a temporary workaround, restrict access to the `GetContextHelpForPage()`, `GetRemoteDashboardContent()`, and `GetRemoteDashboardCss()` functions.